Search Results (18978 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2021-3507 3 Debian, Qemu, Redhat 3 Debian Linux, Qemu, Enterprise Linux 2024-11-21 6.1 Medium
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.
CVE-2021-3501 4 Fedoraproject, Linux, Netapp and 1 more 28 Fedora, Linux Kernel, Cloud Backup and 25 more 2024-11-21 7.1 High
A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.
CVE-2021-3500 2 Debian, Djvulibre Project 2 Debian Linux, Djvulibre 2024-11-21 7.8 High
A flaw was found in djvulibre-3.5.28 and earlier. A Stack overflow in function DJVU::DjVuDocument::get_djvu_file() via crafted djvu file may lead to application crash and other consequences.
CVE-2021-3498 3 Debian, Gstreamer Project, Redhat 3 Debian Linux, Gstreamer, Enterprise Linux 2024-11-21 7.8 High
GStreamer before 1.18.4 might cause heap corruption when parsing certain malformed Matroska files.
CVE-2021-3496 1 Jhead Project 1 Jhead 2024-11-21 7.8 High
A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file.
CVE-2021-3491 2 Canonical, Linux 2 Ubuntu Linux, Linux Kernel 2024-11-21 7.8 High
The io_uring subsystem in the Linux kernel allowed the MAX_RW_COUNT limit to be bypassed in the PROVIDE_BUFFERS operation, which led to negative values being usedin mem_rw when reading /proc/<PID>/mem. This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was addressed via commit d1f82808877b ("io_uring: truncate lengths larger than MAX_RW_COUNT on provide buffers") (v5.13-rc1) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced in ddf0322db79c ("io_uring: add IORING_OP_PROVIDE_BUFFERS") (v5.7-rc1).
CVE-2021-3490 2 Canonical, Linux 2 Ubuntu Linux, Linux Kernel 2024-11-21 7.8 High
The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e ("bpf: Fix alu32 const subreg bound tracking on bitwise operations") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking") (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 ("bpf:Fix a verifier failure with xor") ( 5.10-rc1).
CVE-2021-3489 3 Canonical, Linux, Redhat 3 Ubuntu Linux, Linux Kernel, Enterprise Linux 2024-11-21 7.8 High
The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee ("bpf, ringbuf: Deny reserve of buffers larger than ringbuf") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced via 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") (v5.8-rc1).
CVE-2021-3482 4 Debian, Exiv2, Fedoraproject and 1 more 4 Debian Linux, Exiv2, Fedora and 1 more 2024-11-21 6.5 Medium
A flaw was found in Exiv2 in versions before and including 0.27.4-RC1. Improper input validation of the rawData.size property in Jp2Image::readMetadata() in jp2image.cpp can lead to a heap-based buffer overflow via a crafted JPG image containing malicious EXIF data.
CVE-2021-3470 1 Redislabs 1 Redis 2024-11-21 5.3 Medium
A heap overflow issue was found in Redis in versions before 5.0.10, before 6.0.9 and before 6.2.0 when using a heap allocator other than jemalloc or glibc's malloc, leading to potential out of bound write or process crash. Effectively this flaw does not affect the vast majority of users, who use jemalloc or glibc malloc.
CVE-2021-3459 1 Motorola 2 Mm1000, Mm1000 Firmware 2024-11-21 6.8 Medium
A privilege escalation vulnerability was reported in the MM1000 device configuration web server, which could allow privileged shell access and/or arbitrary privileged commands to be executed on the adapter.
CVE-2021-3444 3 Canonical, Debian, Linux 3 Ubuntu Linux, Debian Linux, Linux Kernel 2024-11-21 7.8 High
The bpf verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker with the ability to load bpf programs could use this gain out-of-bounds reads in kernel memory leading to information disclosure (kernel memory), and possibly out-of-bounds writes that could potentially lead to code execution. This issue was addressed in the upstream kernel in commit 9b00f1b78809 ("bpf: Fix truncation handling for mod32 dst reg wrt zero") and in Linux stable kernels 5.11.2, 5.10.19, and 5.4.101.
CVE-2021-3434 1 Zephyrproject 1 Zephyr 2024-11-21 4.9 Medium
Stack based buffer overflow in le_ecred_conn_req(). Zephyr versions >= v2.5.0 Stack-based Buffer Overflow (CWE-121). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm
CVE-2021-3405 3 Debian, Fedoraproject, Matroska 3 Debian Linux, Fedora, Libebml 2024-11-21 6.5 Medium
A flaw was found in libebml before 1.4.2. A heap overflow bug exists in the implementation of EbmlString::ReadData and EbmlUnicodeString::ReadData in libebml.
CVE-2021-3404 3 Fedoraproject, Redhat, Ytnef Project 3 Fedora, Enterprise Linux, Ytnef 2024-11-21 7.8 High
In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow which can be triggered via a crafted file.
CVE-2021-3382 1 Gitea 1 Gitea 2024-11-21 7.5 High
Stack buffer overflow vulnerability in gitea 1.9.0 through 1.13.1 allows remote attackers to cause a denial of service (crash) via vectors related to a file path.
CVE-2021-3375 1 Atomisystems 1 Activepresenter 2024-11-21 9.8 Critical
ActivePresenter 6.1.6 is affected by a memory corruption vulnerability that may result in a denial of service (DoS) or arbitrary code execution.
CVE-2021-3345 2 Gnupg, Oracle 2 Libgcrypt, Communications Billing And Revenue Management 2024-11-21 7.8 High
_gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.
CVE-2021-3342 1 Eprints 1 Eprints 2024-11-21 9.8 Critical
EPrints 3.4.2 allows remote attackers to read arbitrary files and possibly execute commands via crafted LaTeX input to a cgi/latex2png?latex= URI.
CVE-2021-3330 1 Zephyrproject 1 Zephyr 2024-11-21 7.1 High
RCE/DOS: Linked-list corruption leading to large out-of-bounds write while sorting for forged fragment list in Zephyr. Zephyr versions >= >=2.4.0 contain Out-of-bounds Write (CWE-787). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fj4r-373f-9456